Convertible lister and cultivator



E. H. GRANTHAM. CONVERTIBLE LlSTER AND CULTIVATOR. APPLICATION FILED MAY 15, 1918.

1,409,846. Patented Mar. 14, 1922.

E. H. GRANTHAM.

CONVERTIBLE LISTER AND CULTIVATOR.

APPLICATION FILED MAYIS, 1918.

1 #109,846. 7 Patentemn14,1922.-

4 SHEETS-SHEET Z.

E. H. G RANTHAM. CON-VERTIBLE-LISTERAND CULTIVATOR,

' APPLICATION FILED MAY 15, I9I'8- Patented Mar. 14, 1922.

4 SHEETS-SHEET 3.

E. H. GRANIHAM. CONVERTIBLE LISTER AND CULTIVATOR.

APPLICATION men MAY 15. ms.

1 ,409,846 Patented Mar. 14, 1922.

4 SHEETS-SHEET 4.

marten stares PATENT OFFICE.

ELZA H. GRA'NTHAM, OF NORTHWAY, COLORADO.

CONVERTIBLE LISTER AND CULTIVATOR.

incense.

Application filed May 15,

To all zchom it may concern:

Be it known that I, Enza H. GRANTHAM, a citizen of the United States of America, residing at Northway, in the count-y of Prowers and State of Colorado, have invented new and-useful Improvements in a Convertible Lister and Cultivator, of which the following is a specification.

The object of the invention is to provide a convertible lister and cultivator adapted for an interchangeability and adjustment of parts whereby it is adapted to perform the various functions for which it is desi ned under varying conditions of soil and requirements of crops, the several elements being under the convenient control of the operator under conditions which insure the maximum efficiency.

Further objects and advantages of the invention will appear in the course of the following description. it being understood that various changes in the form, proportion and details of the illustrated embodiment may be made, within the scope of the appended claims, without departing from the spirit of the invention.

In the drawings:

Figure 1. is a plan view of the machine with the parts adjusted and arranged for use as a lister.

Figure 2 is a side view of the same.

Figure 3 is a front elevational view of the planting device and its associated parts.

Figure at is a plan view of the machine with the parts adjusted and arranged as a cultivator and showing in dotted lines a further adjusted position of the disks.

Figure 5 is a detail side elevational view of the adjusting means for raising and low- 40 ering the plows.

Figures 6 and 7 are respectively face and edge views of the cooperating toothed plates by which reversal or angular adjustment of the plOw disks is effected.

Figure 8 is a detail plan View illustrating the scrapers used with the disks.

Figure 9 is a detail elevatii'inal view illustrating the fenders associated with the disks.

The main frame of the machine embodies the substantially and preferably parallel side beams 10 which may be arched as shown in Figure 2 for a purpose which will appear hereinafter, and connected with this frame by means of hangers 11 are the forward wheels 12 of which the spindle 13 is mounted in bearings of said han ers to permit of ro- Specification of Letters Patent.

Patented Mar. 14, 1922.

1918. Serial No. 234,599.

tation or angular movement. This spindle is preferably of a cross sectionally quadrangular or irregular form to receive the sleeves Mot the plow beams 15 whereby said plow beams are adapted through movement of their sleeves on the spindle to be adjusted toward or from each other or to be reversed imposition, and to be moved angularly as by turning the spindle, to permit of raising the disks 15 which are mounted thereon. This angular movement of the spindle is conveniently effected by means of a hand lever 16 secured to the spindle and adapted to be held in adjusted positions, to correspondingly maintain the plow beams and the elements supported thereby, through the agency of a pawl 17 engaging the teeth of a segment 18 suitably secured to the frame.

Also carried by the plow beams are the covering shovels 19 of which the stocks 20 are attached as by bolts 21 thereto. The angular relation of the disks with the plow beams may be changed through the agency of toothed plates 22 and 23, the latter being of wedge form to permit of reversal or angular adjustment, the parts being held in the preferred relative positions by means of bolts 24. j

Supported by the frame in a convenient relation to the furrow opening and closing devices above described, and consisting of the disks 15 and shovels 19, is a seeding mechanism consisting, for example, of a seed box 25 and a spout 26, the feedingdevice of the seed box, which may be of any ordinary or preferred form, being operated from one of the main or forward wheels of the machine through a shaft 27 carrying at its upper rear end a pinion 28 and at its forward or lower end with a pinion 29 meshing with a gear 30 on said wheel. The forward end of the said shaft with its attached pinion is carried by a bracket 30, so mounted upon the hub of the wheel as to permit of its movement axially thereof to effect disengagement of said pinion from the gear on the wheel when it is desired to check the operation of the seeding mechanism.

Depending from the rear end of the main frame is a fork 31 upon which are mounted rear supporting wheels 32, said fork being angularly adjustable for steering purposes by means of a handle 33 and being held in its adjusted positions by means of a latch 34 engaging a suitable segment 35. Also a seat 36 may be mounted by means of a spring 1 of the seed box. and the means for raising and lowering the furrow opening and closing devices for adjusting the steering wheels.

The draft mechanism includes a tongue 38 connected by a suitable bracket 89 with the frame of the machine and a clevis 40 which is adjustable relatively to the tongue to suit the required conditions of draft and the number ofdraft animals so as to equalize the strains and to adapt the mechanism to be used affectively both on level ground andin side hill work.

The plow beams carry scrapers 41 which (co-operate with the disks to prevent accumulation of soil thereon and may also be provided with fenders 42 for the protection of small plants, particularly when the machine is used a cultivator, in which connection the disks may be arranged at a different angle from that indicated in Figure l, as for example, as shown in Figure a, or may be separated as also shown in Figure 4 or may be reversed as indicated in dotted lines. Also the shovels 19 may or may not be used in these adjusted positions of the disk carrying beams as preferred by the operator, the stocks of said shovels being removable from the beams by the loosening of suit-- able securing bolts 43, and moreover the plow stocks may be adjusted relatively to the beams to secure different angular positions and thus vary the interval between the shovels and the relation of same with the disks and the seed spout.

By the provision of the spindles 4a which are detachably connected to the arms and the fork 31 by means of the fasteners the supporting wheels32 maybe positioned on the inside of the fork when the device is used as a'lister sons to be sufficiently close to each other to follow a ditch. Incidentally these wheels 32 may be also positioned on the out side of the fork 31 when the device is used as a cultivator so that the wheels may be positioned on opposite sides of growing plants.

From the foregoing description it will be obvious that the parts necessary for the operation of either cultivating or listing are conveniently and compactly arranged, the arch of the main frame permitting of the free lateral adjustment of the disks or other furrow opening means together with the elements attached to and carried by the beams thereof, and that similarly the various elements may be adjusted in their cooperative relations to secure the desired results under the various conditions of use, while at the same time provision is made for the removal or replacement of injured or temporarily unnecessary parts without requiring the exercise of more than ordinary skill.

lVhat is claimed is:

1. In a machine of the kind set forth, a main frame, a spindle carried thereby and provided with means for the angular or rotary adjustment of the same, laterally adjustable cultivator beams carried by the spindle, ultivator disks, plates carried respectively by the disks and beams and provided with teeth on their facing sides, wedge shaped plates interposed between the plates on the disks and beams and formed with teeth on their opposite faces engaging the teeth of the first said plates, and means removably securing the disks to the beams.

2. In a machine of the kind set forth a main frame. a spindle carried thereby and provided with means for the angular or rotary adjustment of the same, cultivator beams carried 'by the spindle, cultivator disks, plates carried respectively by the disks and beams and provided with teeth on their facing sides, wedge shaped plates interposed between the plates on the disks and beams and formed with teeth on their opposite faces engaging the teeth of the first said plates, and means removably securing the disks to the beams.

In a machine of the kind described, a main frame, an angularly adjustable spindle carried by the frame, ground wheels rotatably mounted on the spindle, cultivator beams carried by the spindle and laterally adjustable in the direction of the length of the latter, cultivator disks carried at the rear or free extremities of the beams. covering shovels disposed in rear'of the disks, and stocks by which the said shovels are carried, the stocks being bolted to the beams adjacent the forward ends of the former and being provided with arcuate slots and screws passing through said slots and entering the beams, whereby the stocks may be adjusted angularly with reference to the beams to effect lateral adjustment of the shovels relative to the frame and to the disks.

In testimony whereof I aflix my signature.

ELZA I-l. 'GRANTHAM. 

